Question

David was at the

airport for 2 hours.
He spent 45 minutes of
that time waiting in
the security line.
What percentage of
time did he spend in
the security line?

Answer 1

David spent 37.5% of his time at the airport in the security line. This was calculated by dividing the 45 minutes he spent in line by the total time of 120 minutes and multiplying by 100 to get a percentage.

Step-by-step explanation:

To determine what percentage of time David spent in the security line at the airport, we need to follow these steps:

1. First, convert the total time David was at the airport into minutes. Since he was there for 2 hours, and each hour has 60 minutes, that's 2 hours × 60 minutes/hour = 120 minutes.
2. David spent 45 minutes in the security line.
3. Next, to find the percentage of the total time spent in security, divide the time in the security line by the total time at the airport and multiply by 100 to get a percentage. So, 45 minutes / 120 minutes × 100 = 37.5%.

Therefore, David spent 37.5% of his time at the airport waiting in the security line.

Answer 2

37.5%

Step-by-step explanation:

2 hours = 120 mins

(Units need to be the same in order to work with them)

45/120 = x/100

45 * 100 = 120x

x= 37.5%